Is it possible? FacesContext.getCurrentInstance() returns null.
How to register a JSF 1.2 PhaseListener in a Servlet.init()?
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A regular servlet isn't initialized/called during a JSF request, so there's no means of a
FacesContextin a servlet. Only when the request URL matches theFacesServlet, then there's aFacesContext. You should register thePhaseListenerinfaces-config.xmlor in a JSF managed bean instead. Consider doing it in the (post)constructor of an application scoped managed bean.